JBL PB12 Subwoofer "rumbles turned" Questions

Bose cinemate acoustimass module The small speakers work fine, but the acoustimass module has a low faint rumbling, can hardly decern music or vocal hardly audible When I turn the volume up high I can

HI my name is simon from zambia,i'v had this problem for quite a while now,my subwoofer keeps making this funny rumbling irritating sound what should I do about it? Please help. If your subwoofer ...

subwoofer suddenly started rumbling with the receiver off. MTX HTB!-S subwoofer... still does it with the wires disconnected and turned on. I had the same problem with mine, I change the 4700Mf ...

I own a EUROLIVE B215 Behringer speaker with a built-in amp for Dj'ing. Every time I plug in the speaker and turn it on, popping,crackling, and lots of rumbling are produced from the speaker and I am ...

Cerwin Vega ve-28s subwoofer and new Cervin Vega 2-way satellites Hi, Since we got this sub last Christmas it has had a periodic popping, crackling and thumping sound. Sometimes loud enough to make us

JBL d110 /w no sound output I recently purchased a used d110 and am getting no output out of it. Led on front stays red. If i partially remove one of the RCAs i will get a loud hum, but no results ...

JBL PB12 standby WAY too sensative I listen to classical music that tends to have a very wide dynamic range. At lower volume levels this amp turns off, or even worse, flickers on/off very rapidly. ...

I have a sub maybe 12 years old s/n 503137 When theres music playing on a movie,the sub just rumbles on and even when I turn the volume knob to zero,the sub still is working.Very frustrated.can you ...